Drain-outlet for sinks and the like.



W. J. KOHLER.

DRAIN OUTLET FOR SINKS AND THE LIKE.

APPLICATION FILED JAN. )8, I913.

Patented Aug. 14, 1917.

WALTER J. KOHLER, OF SHEBOYGAN, WISCONSIN, ASSIGNOR 'IO KOI-ILER 00., OF KOHLER, WISCONSIN, A CORPORATION OF WISCONSIN.

DRAIN-OUTLET FOR SINKS AND THE LIKE.

Specification of Letters Patent.

Patented Aug. 14, 1917.

Application filed January 18, 1913. Serial No. 742,856.

To all whom it may concern:

Be it known that I, WALTER J. lKoHLnR, a citizen of the United States, and resident of Sheboygan, inthe county of Sheboygan and State of lVisconsin, have invented new and useful Improvements in Drain-Outlets for Sinks and the like, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention has for its object to provide adrain outlet for sink. and the like which will avoid the necessity for the formation of a shoulder in the enameled surface of the sink bottom and at the same time will permit of the strainer plate thereof being readily removed for access to the interior. i

With the above and other objects in view the invention consists in the sink outlet as herein claimed and all equivalents.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in different views:

Figure 1 is a sectional elevation of a sink outlet constructed in accordance with this invention; and,

Fig. 2 is a plan view thereof.

In these drawings 10 indicates a sink bottom for the bottom of a bathtub or other enameled metal container for water and 11 is the outlet opening thereof which is made of a funnel shape with rounded walls merging with the flat bottom of the sink and having the enameled surface extending thereover. Within the funnel shape outlet opening 11 is contained an external threaded cylindrical waste fitting 12 which is shouldered and flanged at its upper end, the flange 13 thereof being horizontal and of the same thickness to its outer edge which bears against the curved enameled surface of the outlet opening below the level of the sink bottom. Within the shouldered head or upper part of the waste fitting 12 there is threaded an inverted cup-shaped perforated strainer plate 14 which lies in approximately the same horizontal plane as the an nular flange 13 and the waste fitting 12 is secured in place by means of a nut 15 threaded thereon clamping a rubber gasket 16 between it and the edge of the outlet opening 11 of the sink. A flanged nut 17 threaded on the lower end of the waste fitting 12 serves as a means for connecting a drain pipe 18 to the coupling with a rubber gasket 19 therebetween.

By means of this invention the angular edge of the annular flange 13 forms a tight fit with the enameled surface of the funnel shape outlet opening of the sink and when once the waste fitting is clamped in place with the parts fitting properly together to form a tight connection between the flange and the sink bottom they remain so notwithstanding the removal of the strainer plate which fits within the shoulder portion of the waste fitting 12 and may be independently removed for access to the interior. With sanitary enameled metal plumbing ware provided with rounded funnel shape outlet openings the purpose is to avoid the formation of a shoulder which is liable to produce a cracking of the enamel and with those forms of outlet connections having a material bearing surface against the enameled surface of the outlet opening there is the possibil ty of an imperfect fit between the metal parts and the enameled surface by reason of a particle of grit or other hard substance in the enamel or between the metal and enameled surfaces. With the present invention the contact between the metal and the enameled surfaces being confined to a single line of contact at the edge of the flange 13 and such line of contact being slightly shiftable in any direction to avoid an irregularity in the enameled surface. If necessary the device may be made to fit perfectly notwithstanding irregularities in the enameled surface. Furthermore, with the present invention the strainer plate is not required-t0 fit the enameled surface, but fits within the flange from which it may be readily removed without disturbing the tight connection between the metal and enamel surfaces.

What I claim as new and desire to secure by Letters Patent is:

1. A drain outlet for enameled iron sinks and the like, comprising the combination with the sink or the like having a funnelshaped enameled iron outlet opening with a rounded flaring enameled surface merging with and forming a continuation of the enameled sink bottom and devoid of flat surfaces or shoulders, of a metal waste fitting having an annular flange at its upper end terminating in a square edge bearing against the rounded flaring enameled surface of the sink outlet and positioned below the level of the sink bottom, said metal waste fitting also having a tubular portion of considerably smaller external diameter than the internal diameter of the outet opening to be capable of lateral movement therein or tilting movement to enable the lower edge of the annular flange to be fitted to the enameled rounded flaring surface of the sink outlet with an unbroken line of contact and avoiding the irregularities in such enameled surface. a yielding gasket fitting against the lower end of the sink outlet, a nut threaded on the tubular portion of the waste fitting and engaging the gasket for drawing the flange of the waste fitting tightly against the rounded flaring enameled surface of the sink outlet in its adjusted position, and a strainer plate covering the opening through the waste fitting.

2. A drain outlet for enameled iron sinks and the like, comprising the combination with the sink or the like having a funnelshaped outlet opening with convex walls merging with and forming a continuation of the flat sink bottom, the walls of said outlet forming unbroken curves without shoulders or ledges and having their surface enameled as an uninterrupted continuation of the enameled surface of the sink bottom, of a metal waste fitting having a dislclike flange at its upper end terminating in a. single bearing edge contacting with the inclined rounded enameled surface of the sink outlet below the level of the sinkbottom, said metal waste fitting also having a tubular portion smaller than the internal diameter of the outlet opening to permit of adjustments of the disk-like flange either laterally 0r inclined in any direction to obtain the fit of the bearing edge of the disk-like flange in an unbroken line of contact with the enameled surface of the sink outlet, a nut threaded on the tubular portion of the waste fitting and having a bearing against the sink outlet for drawing the disk-shaped flange tight in its adjustment, and a strainer covering the opening through the waste fitting. I

8. In a drain outlet for enameled iron sinks and the like, a tubular waste-fitting having a disk-like flange projecting laterally from its upper end adapted to engage at its lower edge with a single unbroken line of contact the enameled surface of a funnel-shaped outlet opening of the sink, said tubular waste-fitting having no other contact with the sink, and means on the tubular waste-fitting bearing against the bottom of the sink outlet for drawing the disk-shaped flange tight in its engagement with the enameled surface of the sink outlet.

4. In a drain outlet for an enameled iron sink or the like having a funnel-shaped enameled outlet opening devoid of ridges or shoulders, a tubular waste-fitting clamped to the outlet opening by means of an upper clamping member and a lower clamping member, the upper clamping member comprising a thin annular laterally extending flange at the upper end of the tubular waste fitting engaging the enameled surface of the inclined walls of the funnel-shaped outlet opening along a single unbroken line of contact, and the lower clamping member comprising a nut threaded on the tubular waste-fitting and bearing against the bottom of the sink.

In testimony whereof, I affix my signature, in presence of two witnesses.

. WALTER J. KOHLER. Witnesses:

C. D. TUTI-IILL, G. H. ZoERB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

